UKTC Archive

RE: No dig cellular confinement solution/pile and beam

Subject: RE: No dig cellular confinement solution/pile and beam
From: willross583@xxxxxxxxxxx.com
Date: Dec 05 2019 16:17:54
Ben,
        I agree it should be fairly easier to remove once the top layer of 
stone and geotextile are removed as the web can be pulled out, the other 
thought is if water is to be diverted into the underfloor  void via 
perforated piping or similar  the web & infill stone  could be left and the 
water would percolate through this.
Will 

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info <uktc-request@xxxxxx.tree-care.info> 
On Behalf Of Ben Rose
Sent: 04 December 2019 09:33
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Re: No dig cellular confinement solution/pile and beam

Hi Will,

If the surface is permeable I think that in most circumstances it would be 
okay to leave it in place. However, if you are unsure why not get the 
contractors to remove it? I used to believe that it was a difficult operation 
to remove a cellular confinement system, but now that I've seen it done I 
realise that I was completely wrong. A mini-digger can pull out a whole mat 
in one move; then you are left with a pile of stones which mini-diggers are 
well designed to deal with. A small installation can be removed in minutes.

Ben



Sent: Tuesday, December 03, 2019 at 10:45 AM
From: "willross583@xxxxxxxxxxx.com" <uktc@xxxxxx.tree-care.info>
To: "UK Tree Care" <uktc@xxxxxx.tree-care.info>
Subject: No dig cellular confinement solution/pile and beam

All,

     Would appreciate advice/comment

I have a site where a pile and beam solution has been recommended 
within the RPA of a lime tree (developers original arb report) for 
construction of a dwelling, the construction team will require access 
to the RPA to facilliatate works so ground protection will be required 
in this case due to type of works  cellular confinement is likely to 
be the best option as opposed to mats (contractors normal choice). I wonder 
if anyone has
experience of this being left in place in the void  under   block and beam
or should it be removed, obviously as far as long term structural 
integrity is concerned a structural engineer will be consulted by the 
construction company. Any comments welcome.



Will




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The UKTC is supported by Bosky Trees arboricultural consultancy
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